Headlight-lens.



UME" ERNEST'E.- HILLYER, OF PORT RICHhlI-OND, NEW-YORK 'HEADnrGHr-Lnns.

To all whom it may conce/ra: j `Be it known that I, ERNEST E. I'IILLYER, a citizen of the United States, residing at Port Richmond,l county of Richmond, State of New York, have invented certain new and useful Improvements in Headlight-Lenses, of which the following is a full, clear, and

exact description.

This invention relates to an anti-glare headlight lens and has for an object to provide means whereby the glare, incident to thevcombination of an electric light and a reflector, can be obviated without materially lessening the projection of sufficient light to plainly illuminate the road ahead of a movvehicle.

' IVhile lenses, now inuse, obtain the object of, so to speak, killing the glare of head lights they-also materially lessen the illuminating power of the light so much sothat it "'is very difiicult to illuminate a. road for a sufficient distance ahead ofl a moving vehicle to insure safety.

To obtain the objects above referred to I employ alens, which is insertible in the ordinary headlight casing, embodying a transparent member .and associated translucent members, the translucent members being arvso ranged to intercept the rays of light projected against the reflector, by the illuminating medium, and also to intercept the re- Hected rays of light. In other words I obtain the objects sought by;intercepting the rays of lightl and not by diverging them out of their natural course, to any great extent, by the employment of reflecting surfaces such as supplemental or auxiliary lenses.'v In -of a transparent lens member or plate 4,

preferably glass having flat surfaces, a translucegt a'ngularly disposed vizor 5 and a transluce t intercepter` 6 which projects Specification of Letters Patent. l Patented Mar, 25, 1919, l Application led October 5, 1918. Serial 13o. 256,984.

inwardly-from the lens plate 4, and is shaped in conformity with substantially-the lower half of the parabolic reflector 7. The lens, as a whole, will be applied to thecasing 8 of the headlight, being held in this instance by the ring 9. 'But my invention does not relate to any particular mannerof mounting the' lens. In this instance the vizor 5, and intercepter 6, ,are formed integral with the lens proper, or plate 4, but if desirable the intercepter may be a separate part as indicated in Fig. 3. 4When separately formed the intercepter as illustrated in Fig. 3, and indicated by 10, will be provided with means to secure it in position. For instance it could be provided with a bracket l1 to engage the socket 12 (Fig. 1.) for the bulb 13, and also with one or more plates 14 to lie between the plate 4 and the reflector. the provision of the separate or detachable' intercepter 10 an ordinary anti-glare head light lens could be rendered still more effective to kill the glare of ahead light;

It is a well established fact that the annoying or glaring rays emanate from the lower portio1il4 of the reflector when they are cast upwardly. While the rays which emanate fromv the. portion 15 of the reflector will be cast ,downwardlyl and do not annoy the driver of an approaching vehicle or tend to confuse the pedestrians to any great extent, although it is desirable to modify them. To

modify the rays-of light which are projected f by the upper p ortion of the reflector and the rays of light which are projected by the lower portion of the reflector is the purpose .of the vizor 5 and intercepter 6, the plate' portion 4 of the reflector is neutral in its action, that is to say does not act to intercept, divert or screen the rays ofl light. lVhile both the vizor 5 and intercepter 6 act to diffuse the rays of light, the intercepter 6 more completely performs this function due to its position relatively to the source of light 13. To cause these elements to diffuse the light I frost the outersurface of the vizor 5 as indicated by 16 and the inner surface 17 of the intercepter 6. The intercepter 6, .-s can be seen, covers substantially the lower half of the reflector or that portion of me reflector which casts rays upwardly. The vizor -will be designed to screen a certain portion of the reflector above i the axis of the bulb 13, the'exact extent of v safety.

which will be determined by experiment. The angular disposition of the vizor will also be determined by experiment. It will be apparent that the intercepter (3, which is translucent will allow rays of light to pass therethrough to strike the reflector 7 and also will allow these rays to be reflected back through said intercepter. frosting or translucency of the intercepter .the rays lwill be dill'used and'will not focus,

rays of light from striking the reflector directly. The intercepter is cut away at 18 to permit of the insertion or'removal "of the lens, as the upper rear edge 19 of said intercepter Will be located 'preferably in a plane above the lowermost point of the lamp bulb, but below the axis of the bulb so as not to intercept the ,rays of reflected light emanating from the middle Zone of the reflector Owing to the throughout the width thereof, as these are the rays which chiefly illuminate the road.

What I clainras my invention is:-

l. In a headlight lens a transparent plate member, a translucent member extending forwardly from said plate, and a translucent member extending rearwardly from said plate.

In a headlight, a transparent plate member, a light intercepting medium ex-` tending forwardly and downwardly from the upper portion of the plate, and a light intercepting medium extending rearwardly and upwardly .from the ,lower portion of said plate. l

3. In a headlight lens', atransparent glass plate portion haring flat surfaces, a vizor integral therewith andlgext'ending forwardly 50 anfd downwardly fromjjthe upper portion of the outer surface of said plate, and an intercepting medumjalso integral with said plate and extending vrearvqandlyv and upwardly from the inner-` surface thereof, the outer surface of said vizor ajnd the inner surface of said intercepterv being frosted..

Signed at Port Richmond,

day of October,`1918.

ERNEST E. HILLYER.

Witnesses: y

FRANK FOGGIN, MARY W. STERNER? Y., aus 1 

